Searched for: subject%3A%22readout%22
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Lee, M. (author)
This thesis encompasses both applied and fundamental studies of suspended van der Waals materials. Chapters 1 and 2 give an introduction to the field of 2D materials and some of the critical methods which facilitate the study of the suspended structures. In Chapters 3 and 4 we focus on the applications of graphene in barometric pressure sensors...
doctoral thesis 2021
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Zhang, Remy (author), Becoy, Alexander James (author)
This thesis focuses on improving the readout of the ADome by implementing MCUs at each antenna probe, enabling local sampling and memory storage. The serial communication protocols CAN, SPI and I2C are considered and compared with one another. Ultimately, CAN is decided due to its robustness and simplicity which make the system cheap and ensures...
bachelor thesis 2021
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An, J. (author), Ra, Jong Hyun (author), Kang, E. (author), Pertijs, M.A.P. (author), Han, S.H. (author)
This article presents a readout integrated circuit (ROIC) for capacitive touch-screen panels (TSPs) employing an amplitude-modulated multiple-frequency excitation (AM-MFE) technique. To prevent charge overflow, which occurs periodically at the beat frequency of the excitation frequencies, the ROIC modulates the amplitude of the excitation...
journal article 2021
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Saad, Mohamed (author)
This thesis presents a BJT-based CMOS temperature-to-digital converter (TDC). With a continuous-time readout, the TDC avoids the kT/C noise limit incurred by previous discrete-time (switched-capacitor) TDCs. An energy-efficient BJT front-end generates single PTAT and CTAT currents for being digitized by a delta-sigma modulator through a linear...
master thesis 2020
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Prabowo, Bagas (author)
Quantum computers hold a promise to solve intractable problems that can not be solved with classical computers. In quantum computers, information is processed in qubits as opposed to bits. The proper operation of qubits requires them to be operated in a quantum state; hence they need to be cooled down to temperatures well below <1K. Using...
master thesis 2020
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Wang, Qian (author), Audley, Michael D. (author), Khosropanah, Pourya (author), van der Kuur, Jan (author), de Lange, Gert (author), Aminaei, Amin (author), Boersma, Dick (author), van der Tak, Floris (author), Gao, J. (author)
The SPICA-SAFARI instrument requires extremely sensitive transition edge sensor (TES) arrays with a noise equivalent power of 2×10-19W/Hz and a readout system with an output noise that is dominated by the detector noise. It is essential to ensure the frequency domain multiplexing (FDM) readout system in SAFARI meets the noise requirement. The...
journal article 2020
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Ruffino, A. (author), Peng, Yatao (author), Sebastiano, F. (author), Babaie, M. (author), Charbon-Iwasaki-Charbon, E. (author)
Quantum computers require classical electronics to ensure fault-tolerant operation. To address compactness and scalability, it was proposed to implement such electronics as integrated circuits operating at cryogenic temperatures close to those at which quantum bits (qubits) operate. Circulators are among the most common blocks used in the...
journal article 2020
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Ferreira Pimenta, Matheus (author)
This thesis presents an Eddy current sensor (ECS) for button readout applications. By employing a Phase-locked loop to perform a frequency readout, it was possible to significantly reduce the power consumption of the interface while achieving resolutions comparable to prior arts making it a more suitable solution for portable applications. The...
master thesis 2019
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Jiang, H. (author), Nihtianova, S. (author), Makinwa, K.A.A. (author)
This paper describes an energy-efficient bridge readout IC (ROIC), which consists of a capacitively coupled instrumentation amplifier (CCIA) that drives a continuous-time delta–sigma modulator (CTM). By exploiting the CCIA’s ability<br/>to block dc common-mode voltages, the bridge’s bias voltage may exceed the ROIC’s supply voltage, allowing...
journal article 2019
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Balamurali, Sriram (author)
The promise that quantum computing is going to solve intractable computational problems has drawn tremendous interest and motivation in research communities throughout the world. However, operating a large-scale quantum computer requires classical electronics. In the present experimental setups, classical electronics is placed at room...
master thesis 2018
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Davidovikj, D. (author)
This thesis revolves around nanomechanical membranes made of suspended two - dimensional materials. Chapters 1-3 give an introduction to the field of 2D-based nanomechanical devices together with an overview of the underlying physics and the measurementtools used in subsequent chapters. The research topics that are discussed can bedivided into...
doctoral thesis 2018
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Middelburg, L.M. (author), el Mansouri, B. (author), Poelma, René H. (author), Zhang, Kouchi (author), van Zeijl, H.W. (author), Wei, J. (author)
This work describes the design, modelling and realisation of the mechanical part of a non-linear MEMS accelerometer intended for large displacement behaviour. For this, a mass/spring system was designed with an extremely low resonance frequency. In this work the mechanical behaviour was verified by measurements done using an optical setup,...
conference paper 2018
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Cai, Z. (author), van Veldhoven, Robert (author), Suy, Hilco (author), de Graaf, G. (author), Makinwa, K.A.A. (author), Pertijs, M.A.P. (author)
This paper presents a readout circuit for a carbon dioxide (CO&amp;#2082;) sensor that measures the CO&amp;#x2082;-dependent thermal time constant of a hot-wire transducer. The readout circuit periodically heats up the transducer and uses a phase-domain &amp;#x0394; &amp;#x03A3; modulator to digitize the phase shift of the resulting...
journal article 2018
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Jiang, H. (author), Ligouras, C. (author), Nihtianova, S. (author), Makinwa, K.A.A. (author)
When chopping is applied to a continuous-time sigmadelta modulator (CTΣΔM), quantization noise fold-back often occurs, leading to increased in-band noise. This can be prevented by employing a return-to-zero (RZ) digital-to-analog converter (RZ DAC) in the modulator's feedback path and arranging the chopping transitions to coincide with its RZ...
journal article 2018
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van der Enden, Kian (author)
Majorana zero modes have been proposed as building blocks of intrinsically fault-tolerant quantum computers. Currently, externally applied magnetic fields are necessary to induce Majorana zero modes in carefully engineered systems. Topological qubit state readout is realized by parity sensing of Majorana islands. However, fast and high fidelity...
master thesis 2017
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Koladouz Esfahani, Z. (author)
doctoral thesis 2017
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Davidovikj, D. (author), Scheepers, P.H. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)
To realize nanomechanical graphene-based pressure sensors, it is beneficial to have a method to electrically readout the static displacement of a suspended graphene membrane. Capacitive readout, typical in micro-electromechanical systems, gets increasingly challenging as one starts shrinking the dimensions of these devices because the expected...
journal article 2017
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Jiang, H. (author), Vogel, J.G. (author), Nihtianova, S. (author)
This paper presents a direct digital converter for Wheatstone bridge sensors, which is realized with commercial off-the-shelf components. The power efficiency of the readout is enhanced by embedding the bridge sensor in a second-order continuous-time sigma-delta modulator (CTDeltaSigmaM). By directly digitizing the output signal of a Wheatstone...
journal article 2017
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Borghi, G. (author), Peet, B.J.A. (author), Tabacchini, V. (author), Schaart, D.R. (author)
New applications for positron emission tomography (PET) and combined PET/magnetic resonance imaging (MRI) are currently emerging, for example in the fields of neurological, breast, and pediatric imaging. Such applications require improved image quality, reduced dose, shorter scanning times, and more precise quantification. This can be...
journal article 2016
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Hijmering, R. A. (author), den Hartog, R (author), Ridder, M. (author), Van Der Linden, A. J. (author), Van Der Kuur, J. (author), Gao, J. (author), Jackson, B. (author)
In this paper we present the results of our 176-pixel prototype of the FDM readout system for SAFARI, a TES-based focal-plane instrument for the far-IR SPICA mission. We have implemented the knowledge obtained from the detailed study on electrical crosstalk reported previously. The effect of carrier leakage is reduced by a factor two, mutual...
conference paper 2016
Searched for: subject%3A%22readout%22
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